Ore charges for retorts and method of treating the same.



C."A. H DE SAULL'ES. ORE CHARGES FOR RETORTS AND METHOD OF TREATING THE SAME. APPLICATION FILED MAR.B,1915. 1 166 447, Patented Jan. 4, 1916.

CZMZM 411% /wk.

heated in a retort or mufiie and the spelter collected in a condenser. In such treatment GHARLES A. HaDE SAULLES OF NEW YORK, N. Y.

our: CHARGESFOR RETORTS I Specification of Letters Patent.

AND METHOD or TREATINGEHE SAME.

Application filed March 8, 1915. Serial No. 12,822.

To all whom it'may'concermf Be it known that I, CHARLES A. 'H. on SAULLES, a'citizen of'the United States, 'residing at New York city, in the borough of Manhattan and State of New York, have invented a certain new and useful Improvement in Ore Charges for Retorts and Meth-,- ods 'of Treating the same, of which the following is a specification.

My invention relates to improvements in ore charges for. retorts and methods of treatboth.

As usually treated, prior to my present invention, zinc ore high in iron and lead 'was the spelter in the condenser would take up iron from .the charge, which lessened the value of the product. To'prevenfthis, I, prior to my present invention, employed a front charge low in iron and in arelatively loose or unstable condition, which'served as a dam which partly prevented' the passage or iron from the. back charge into the spelter in the condenser; Such a front charge, however, merely reducedv the amount of iron which would pass into the spelter, as, owing to the comparatively loose and unstable condition of the front charge,small particles of iron would balloon over the front charge and be taken up by the spelter. Also, in removing thespelter from the condenser with a' scraper, theusual implement employed for such purpose, the front charge would be disturbed, thus permitting iron to pass into the condenser.

Theobject of this invention is to provide a novel method of charging and charge for" a retort or muffle which will prevent the passage of iron or lead from the back charge into the condenser, and which will prevent the formation in the front part of the retort of slag knobs.

In the accompanying drawing, which is illustrative of the preferred embodiment of my invention,-Figure '1 is a longitudinal sectional view of a retort and condenser, the back charge, shown in the retort, being introducedinto the retort in loose condition and being retained therein by a briqueted front charge of ore low in iron andl'ead. Fig; 2 is a cross section on the line 22 of Fig. 1 Fi .3 is a View similar to Fig. 1,

'the back charge being inthe form of brig quets as well. as the front charge.

Similar reference characters designate similar parts in the difi'erent views.

l designates an ordinary retort closed at the rear end and adapted to have inserted,

into its forvfard open end a condenser 2, which is adapted to condense and collect the spelter 3 in a molten condition.

In Fig. 1, 4L designates the back charge of and which is introduced into the retort in a loose condition and then tam-ped until it presents at its front end a substantially perpendicular face. A briquct charge of zinc ore 5 low in iron and lead, or such substance as it is desired to filter from the rear charge of ore, is then placed in the retort 1 in front of the charge 4, after which the condenser 52 is inserted in the mouth of the retort. By the term low, in this connection, it is to be understood that the front charge shall contain' very little or none of" the substance which is 'to be filtered, the idea being to prevent the adulteration of the product with such substance. The retort is then heated in the usual manner to a temperature sufficiently high to vaporize the zinc in the. front and back charges, the zinc vapor and Patented Jan. {1, 1916.

a reducing agent, such as coal or zincore which m'ay be high in iron and lead,

through the front briquet charge 5, the tem- I perature' of which at the front side thereof is-not suiiicient-ly high to causethe leadvapor to be driven through into the condenser, so thatthe lead, or the most of it remains in the briquet 5. The zinc vapor passes into;

the condenser and is therein condensed and forms the spelter 3. v

The front charge briquet 5 has considerable. stability, so that it will substantially retain its form throughout the retorting operation. It will, therefore, hold back the iron from the back charge 4 and will not be disturbed or have its form changed by the scraper inits forward and backward movementduring the removal of the spelter from the condenser 2. It ,will also prevent the formation of slag knobs inthe front part of the retort.

briqueted zinc ore high in iron orlead or both. This is treated in the same manner f as the charge 4, shown in Figs. 1 and 2, the front briqueted charge 5 being employed in thesame manner as has already been'de;

' scribed.

Modifications of my invention, ,withinfthe scope of the appended claims, may be made without'departing from Vention. i

What I claim is 1. The method consisting-in employing in a. retort or muffle a front briqueted charge of ore low in a substance which it is desired the spirit of my into filter from a rear charge of ore which is being treated in the retort or muffle.

2. The method consisting in employing in a retort or mufil'e a front briqueted charge of ore containing a reduclng agent and low in a substance which it is desired to filter from a rear charge of ore which is' being treated in the retort or. muffle.

8. The method consisting in employing in a retort or mufiie a front charge briquet of ore low in iron and con taining a reducing reducing agent. I

6. A retort or muffle charge, consisting of a rear charge of ore, and a front briqueted charge of ore low in a substance'which it is desired to filter from the rear charge.

7. A retort or muffle charge, consisting of a rear charge of ore, and afront briqueted charge of ore low in a substance which it is desired to filter from the rear charge and containing a reducing agent.

8. A retort or muflie charge consisting of a rear charge of'ore, and a front briqueted charge of ore low in iron.

" 5,). A retort or inufi le charge consisting of a rear'charge of ore, and a front briqueted charge of ore low in iron and containing a reducing agent.

10. A retort or muffle charge consisting of a rear charge of ore, and afront briqueted charge of ore low in lead.

11. A retort or muffle charge consisting of a rear charge of ore, and a front briqueted charge of ore low in lead and containing a reducing agent.

12. A retort or mufile charge consisting of a rear charge of ore, and a front briqueted charge of ore low in iron and lead.

. 18. A retort or muiile charge consisting of a rear charge of ore, and a front briqueted charge of ore low in iron and lead and containing a reducing agent.

In testlmony whereof I have signed my name to this specification in presence of two subscribing witnesses.

CHARLES A. H. DE SAULLES.

Witnesses T. E. 'FELL', v, M. A. GATELY. 

